LM49155 Datasheet - Texas Instruments

LM49155 Uplink Noise Suppression & Downlink SNR Enhancement Analog Audio Subsystem

The LM49155 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. The LM49155 combines a Noise Suppression microphone amplifier, a 1.35W mono class D amplifier with ALC, class AB earpiece driver with AGC, a high efficiency, stereo, ground referenc.

LM49155 Features

* 1

* 2 Noise cancellation for uplink and downlink without DSP-type artifacts, distortions or delays

* Adapting AGC on ambient noise level & downlink signal strength for earpiece

* Downlink adjustable noise-reducing high pass filter

* E2S Class D Amplifier with ALC

LM49155 Datasheet (779.22 KB)